Material: SGCC, SGCD, SGC340, SGC570, ASTM A653 CS Type, ASTM A653 SS550, DX51D, DX52D, DX53D, etc.
Standard: EN10142, EN10147, EN10292, EN10214, EN10215, JIS G3302, JIS G3321, JIS G 3317, ASTM A653, ASTM A792, ASTM A875
Thickness:0.12-2mm
Hot Products:
EN: DX51D+Z/ZF/ZA/AZ, DX52D+Z/ZF/ZA/AZ, DX53D+Z/ZF/ZA/AZ, S250GD+Z/ZF/AZ/ZA, S280GD+Z/ZF/ZA/AZ, S320GD+Z/ZF/ZA/AZ, S350GD+Z/ZF/ZA/AZ, S550GD+Z/ZF/ZA/AZ.
ASTM: A653 CS, SS340, SS550.
JIS: SGCC, SGCD1, SGC340, SGC570.
Galvanized steel
Galvanized steel is the steel plate surface coated with a layer of zinc to prevent the steel plate surface from corrosion to extend its service life.
Surface treatment of hot-dip galvanized steel we can offer: chromating, oiled, phosphating, etc.
Zinc-coat thickness (g/m2): 40, 60, 80, 90,100, 120, 140,180, 200, 250, 275 and so on.
Specification:
Item | Type | |
Coating types | Zinc coat(Z) | |
Zinc-iron alloy coating(ZF) | ||
Surface structure | Zinc coat | Normal spangle |
Minimized spangle | ||
Spangle free/Zero spangle | ||
Zinc-iron alloy coating | Regular spangle | |
Prepainted Galvanized Steel
Prepainted steel is steel products that take cold rolled steel or galvanized steel as steel substrate, go through the surface pretreatment (degreasing, cleaning, chemical conversion treatment), then was continuously coated with paint (roller coating method), finally go throught the process of baking and cooling.
Specification:
Item | Type |
Steel substrate | hot-dip zinc-coated (Z) |
hot-dip zinc-iron alloy coated steel (ZF) | |
hot-dip zinc-aluminum alloy coated steel (ZA) | |
hot-dip aluminum-zinc alloy coated steel (AZ) | |
Coating surface | coated |
embossed | |
printed | |
Painting | polyester(PE) |
silicon modified polyester (SMP) | |
high-durability polyester (HDP) | |
polyvinylidene fluoride (PVDF) | |
Painting structure | top side painted twice, bottom side painted once (2/1) |
both top side and bottom side painted twice (2/2) | |
Surface structure of steel substrate | Minimized spangle |
Spangle- free/Zero spangle |
Selection of Prepainted Steel
Type and coating weight of steel substrate:
The type and coating weight of steel substrate are the most important factors that influence the corrosion resistance of prepainted steel coil.
The selection should determined in accordance with the usage, envrionmental corrosion, service life and durability. For example, in the severe industrial or humid coastal area, the zinc coating of prepainted steel should be more than 180g/m2.
However, when used for decoration or household appliances, the prepainted steel with normal zinc coated steel substrate can be adopted.
Types of painting:
Painting is the key factor that influences the usage of colour-coated/prepainted steel.
For example, in the humid coastal area, the higher durability painting was suggested such as PVDF, HDP.
Grades and usage of base metal
Grades and usage of colour-coated plate/coil | Grades, standard, type of base plate | |||
| Grade | Usage | Grade | Standard | Type |
| TSGCC,TSGCC-GC | In general use | SGCC | JIS G3302 | Hot galvanized steel plate/coil |
| TDX51D+Z,TDX51D+Z-GC | DX51D+Z | EN 10327 | ||
| TSGCD1 | use for Stamping | SGCD1 | JIS G3302 | |
| TDX52D+Z | DX52D+Z | EN 10327 | ||
| TDX53D+Z,TDX54D+Z | use for Deep drawing | DX53D+ZDX54D+Z | EN10327 | |
| TSGC340,TSGC340-GC | use for Structure | SGC340 | JIS G3302 | |
| TSGC400,TSGC400-GC | SGC400 | |||
| TSGC440,TSGC440-GC | SGC440 | |||
| TSGC490,TSGC490-GC | SGC490 | |||
| TSGC570,TSGC570-GC | SGC570 | |||
| TS220GD+Z,TS220GD+Z-GC | use for Structure | S220GD+Z | EN 10326 | |
| TS250GD+Z,TS250GD+Z-GC | S250GD+Z | |||
| TS280GD+Z,TS280GD+Z-GC | S280GD+Z | |||
| TS320GD+Z,TS320GD+Z-GC | S320GD+Z | |||
| TS350GD+Z,TS350GD+Z-GC | S350GD+Z | |||
| TS550GD+Z,TS550GD+Z-GC | S550GD+Z | |||
| TSPCC | In general use | SPCC | JIS G3141 | Cold-rolled steel plate/coil |
| TDC01 | DC01 | EN 10130 | ||
| TSPCD | use for Stamping | SPCD | JIS G3141 | |
| TDC03 | DC03 | EN 10130 | ||
| TSPCE | use for Deep drawing | SPCE | JIS G3141 | |
| TDC04 | DC04 | EN 10130 | ||
Equivalent Grades List of Hot-Dip Galvanized Steel
EN | ASTM A653M-04a | JIS |
DX51D+Z | CS | SGCC |
DX52D+Z | FS | SGCD1 |
DX53D+Z | DDS | SGCD2 |
DX54D+Z | - | SGCD3 |
S250GD+Z | SS255 | SGC340 |
S280GD+Z | SS275 | - |
S320GD+Z | - | - |
S350GD+Z | SS340 | SGC440 |
S550GD+Z | SS550 | SGC570 |
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